/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.pinot.core.metadata;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * The MetadataExtractorFactory will instantiate the MetadataExtractor class, which is used to extract metadata from
 * a given file during segment upload.
 */
public class MetadataExtractorFactory {
  public static final Logger LOGGER = LoggerFactory.getLogger(MetadataExtractorFactory.class);

  // Prevent factory from being instantiated
  private MetadataExtractorFactory() {
  }

  public static MetadataExtractor create(String metadataClassName) {
    String metadataExtractorClassName = metadataClassName;
    try {
      LOGGER.info("Instantiating MetadataExtractor class {}", metadataExtractorClassName);
      MetadataExtractor metadataExtractor = (MetadataExtractor) Class.forName(metadataExtractorClassName).newInstance();
      return metadataExtractor;
    } catch (Exception e) {
      LOGGER.warn("No metadata extractor class passed in, using default");
      return new DefaultMetadataExtractor();
    }
  }
}
